Property and Equipment, net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 26,126	$ 25,662
Less: Accumulated depreciation and amortization	(22,953)	(22,098)
Total property and equipment, net	3,173	3,564
Internal-use software
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	20,705	20,026
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	4,029	4,029
Computer equipment and software
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	689	621
Software in progress
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	630	913
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 73	$ 73